Subtraction facts up to 20 - 10. Flashcards can be printed with or without answers on the back. If you wish to print cards with answers, just double side the documents in the order that they are printed.
If you like these, check out my addition, multiplication, and division flashcards
I like having the answers on the back...I also told the parents to put sticky notes over them when their children KNOW the answers. I also found a few with the wrong answers & had to fix them before running them off.
I am currently in my third year as the Math RtI teacher at my K-3 elementary school. Previously, I was 3rd grade teacher for 6 years and a 3rd/4th grade special education resource room teacher for one year.